48
Weep holes.
Copine.
Surface channels.
Per-
mission required from
Building Authority
to sink
ar reopen
wells.
Welle pro- hibited in
certain
placca.
Wells to be
BUILDING (CONSTRUCTION) REGULATIONS, 1956
84, (1) A weep hole, with an internal diameter of not less than 3 inches, shall be provided to every 4 square yards of the face of every retaining wall:
Provided that weep holes may be omitted in retaining walls— (a) constructed of masonry built dry; or
(b) designed to withstand maximum potential hydraulic
pressure; or
(e) with adequate subsoil drainage behind such retaining wall
to carry away subsoil water,
(2) A layer of hand-packed broken brick or stone at least 12 inches in thickness shall be provided at the back of every retaining wall except retaining walls built of masonry laid dey,
85. Every retaining wall shall be provided with a proper coping of concrete or other material as the Building Authority may approve.
88. Adequate channels laid to suitable gradients, or paving in accordance with the provisions of regulation 34 shall be formed at the top and toe of every retaining wall to carry away stormwater, seepage, or other surface water.
PART XIL.
Wells.
87. No well shall be sunk or reopened without the permission of the Building Authority.
88. No well shall be sunk in the vicinity of any septic tank, cesspool, sewage sump or in any foul ground.
88. Wells may be excavated or bored and shall be of sufficient of sufficient diameter and depth to provide an adequate water supply.
depth and
diameter.
BUILDING (CONSTRUCTION) REGULATIONS, 1956
49
filter
90. (1) Every excavated well except in solid rock shall be Wells to be properly lined for its entire depth with brickwork, or other suitable lined and material and such lining shall be provided with suitably fixed iron required. rungs or foot rests not more than 2 feet apart for the entire depth,
(2) The lining of every well shall be rendered inpervious for a depth of not less than 6 feet from the level of the adjoining ground.
(3) A suitable filter of clean broken stone, gravel, or sand shall be provided at the bottom of every excavated well.
81. (1) Access for cleaning purposes must be provided for Access for
cleaning every excavated well.
and clogs Btting
required.
(2) An efficient close-fitting cover shall be fitted over every cover well.
92. (1) The top of every well shall be suitably protected to Channels prevent the direct entry of any surface water or sullage water.
and paving to ground Aurface
wells
(2) The ground surface adjoining the top of every well shall adjoining be paved with suitable impervious material for a distance of not tap of less than 4 feet in every direction from the side of such well and required. so constructed as to slope away from the well to a suitable channel.
wall
93. A suitable parapet wall, not less than a feet 6 inches in Parapet height, shall be constructed around the top of every well from
required which water is to be drawn by means of a bucket.
where water la drown
PART XIII.
Fire Resisting Construction.
94. For the purposes of the regulations in this Part- "basement" means any storey of a building or any compartment which is wholly below the level of the street or streets on which such building abuts, or being partially below such level has no access to such streets in the event of fire;
"compartment of a building" means any volume, or floor area in any one storey, in any building assessed as a unit for the purposes of Table XVI;
"elements of construction" means any floor, beam or column;
by a bucket.
Interpre- talion.